He faces up to 20 years in federal prison when he is sentenced in October.

Prosecutors say Miljkovic and a county police officer, Richard Delabrer, purchased untaxed cigarettes from an undercover agent and then sold them to the owner of a carryout store in Maryland. The cigarettes were then sold in New York.

All told, prosecutors say Miljkovic and his co-conspirators paid an undercover agent nearly $1.8 million for more than 17 million cigarettes.

Delabrer and two other men have already pleaded guilty to their roles.